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MrMuchimi
3 years ago
12

Identify the combustion reaction

Chemistry
1 answer:
TiliK225 [7]3 years ago
3 0

Answer:

C₄H₁₂ + 7O₂ --> 4CO₂ + 6H₂O

Explanation:

Organic molecules react with O2 to create water and CO2 in combustion processes. C4H12 is an organic molecule that combines with O2 to create water and CO2 as shown in the reactions.

As a result, this is the sole reaction that obeys the general combustion equation.

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Uses of iron oxide in nanotechnology (biomedicine)
andre [41]
Applications of iron oxide nanoparticles include terabit magnetic storage devices, catalysis, sensors, superparamagnetic relaxometry (SPMR), and high-sensitivity biomolecular magnetic resonance imaging (MRI) for medical diagnosis and therapeutics.
4 0
3 years ago
A silver block, initially at 57.2 ∘C, is submerged into 100.0 g of water at 24.8 ∘C, in an insulated container. The final temper
Masteriza [31]

Answer:

96.5 grams is the mass of the silver block.

Explanation:

Heat lost by iron will be equal to heat gained by the water

-Q_1=Q_2

Mass of iron = m_1=?

Specific heat capacity of silver= c_1=0.240 J/g^oC

Initial temperature of the silver= T_1=120^oC

Final temperature = T_2=T=26.5^oC

Q_1=m_1c_1\times (T-T_1)

Mass of water= m_2=100.0 g

Specific heat capacity of water= c_2=4.184 J/g^oC

Initial temperature of the water = T_3=24.8 ^oC

Final temperature of water = T_2=T=26.5^oC

Q_2=m_2c_2\times (T-T_3)

-Q_1=Q_2

-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)

On substituting all values:

-(m_1\times 0.240 J/g^oC\times (26.5^oC-57.2^oC))=100.0 g\times 4.184 J/g^oC\times (26.5^oC-24.8^oC)

we get, m_1 = 96.5 g

96.5 grams is the mass of the silver block.

5 0
4 years ago
HELP! What are 5 changes for testing out a fidget spinner no websites
Sedbober [7]

Answer:

Explanation:

Can you explain a bit further? once u do, ill edit my answer and tell you :) But to use a fidget spinner, u have to put ur thumb at the bottom and index finger at the top, and spin it with you other fingers if thats what you meant

6 0
3 years ago
Which gas law is represented by the following equation: V1/T1 = V2/T2
jasenka [17]

Answer:

Charles's law

Explanation:

The expression:

     V1/T1 = V2/T2

represents Charles's law

The law states that "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant".

 So,

    V1/T1 = V2/T2

Pressure and the number of moles are constant

V and T are the volume and temperature

1 and 2 are the initial and final states.

5 0
3 years ago
Which of the following releases chemical energy?
GaryK [48]

Answer:

D. burning wood

Explanation: It seems like the only logical answer

7 0
3 years ago
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